mri_vol2surf is the right command. Have you looked at the help for it? 
You can get it by running

mri_vol2surf --help

I think tksurfer uses a projfrac of 0 and nearest neighbor 
interpolation. You can load the result directly into tksurfer to see if 
it looks the same.

doug


Xinian Zuo wrote:
> Dear surfers,
>
> Hi, I used freeesurfer to visualize my volume from FEAT outputs on the
> surface in the way:
>
> tksurfer fsaverage rh inflated_pre -overlay data.nii.gz -mni152reg
>
> , then save surface overlay as a mgh file. My question is, how can I
> get the identical mgh data by using a command line without launching
> the tksurfer gui? I found there is a command mri_vol2surf, but not
> sure about these default settings in tksurfer gui. Really appreciate
> it if some know and like to give your suggestions.
>
>   

-- 
Douglas N. Greve, Ph.D.
MGH-NMR Center
gr...@nmr.mgh.harvard.edu
Phone Number: 617-724-2358 
Fax: 617-726-7422

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
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